From f71991edc33b5c292da454e68f19bb0c264c0ffe Mon Sep 17 00:00:00 2001 From: Seunghwan Kim Date: Mon, 23 Dec 2019 18:51:39 +0900 Subject: mb/google/kohaku: Update reset_delay_ms for digitizer device We found the driver binding failure issue could be cleared with 100ms of "reset_delay_ms". Needs further check with device vendor, anyway it seems the IC need some time before communication after de-assertion of reset. BUG=b:129159369 BRANCH=firmware-hatch-12672.B TEST=Verified driver bound successfully. Signed-off-by: Seunghwan Kim Change-Id: Iccb33c13c9a390a2c971325c74c0c4ad4b08618e Reviewed-on: https://review.coreboot.org/c/coreboot/+/37911 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh --- src/mainboard/google/hatch/variants/kohaku/overridetree.cb | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/mainboard') diff --git a/src/mainboard/google/hatch/variants/kohaku/overridetree.cb b/src/mainboard/google/hatch/variants/kohaku/overridetree.cb index 158731b8e7..ce8746932d 100644 --- a/src/mainboard/google/hatch/variants/kohaku/overridetree.cb +++ b/src/mainboard/google/hatch/variants/kohaku/overridetree.cb @@ -206,7 +206,7 @@ chip soc/intel/cannonlake register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C7_IRQ)" register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C15)" register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A19)" - register "generic.reset_delay_ms" = "1" + register "generic.reset_delay_ms" = "100" register "generic.has_power_resource" = "1" register "hid_desc_reg_offset" = "0x1" device i2c 0x09 on end -- cgit v1.2.3